Improvement in compounds for the manufacture of picture and similar frames



UNITED STATES PATENT OFFIC,

ALFRED N. ATWOOD, OF PHILADELPHIA, PENNSYLVANIA.

V IMPROVEMENT IN COMPOUNDS FOR THE MANUFACTURE OF PICTURE AND SIMILAR FRAMES.

Specification forming part of Letters Patent No. 159,629, dated February 9,1870; application filed April 28, 1874.

To allwhom it may concern:

Be it known that I, ALFRED N. A'rWooD, of the city and county of Philadelphia, in the State of Pennsylvania, have invented a certain Compound for the Manufacture of Frames for Mirrors, Photographs, 850., of which the iolowing is a specification:

My invention relates to a composition for picture and similar frames; and consists of a mixture of asphaltum, asbestus, silica, and soapstone, in the following proportions: Asphaltum, fifty parts; asbestus, twenty-five parts; silica, fifteen parts; soapstone, ten parts.

These ingredients I mix together in a heated state, and pour the compound into suitable molds for the formation of the various articles to be manufactured.

ALFRED N. ATIVOOD.

Witnesses:

THOMAS J. BEWLEY, STEPHEN USTICK. 

